$(function(){
	var jiaodu = $(document).width()/5/2,
		footer1sHeight = $("footer .footer1s").height();
	$(".triangle-up").css({
		"border-left": + jiaodu +'px solid transparent',
		"border-right": + jiaodu +'px solid transparent',
		"border-bottom": + jiaodu/2 +'px solid #846e50',
	});
	$(".footer1s").css("height",footer1sHeight);
});